OpenTelemetry ETW Exporter

Overview

ETW (Event Tracing for Windows) is a Windows solution for user process tracing (https://learn.microsoft.com/en-us/windows-hardware/drivers/devtest/event-tracing-for-windows--etw-), similar to user_events on Linux.

lib.rs:

The ETW exporter will enable applications to use OpenTelemetry API to capture the telemetry events, and write to ETW subsystem.